JPH05146609A - Ceramic filter device - Google Patents

Abstract

PURPOSE:To reduce manufacturing cost, an assembling time and a maintenance time and to obtain a large amount of a filtrate by vertically connecting ceramic filter module groups each formed by individually arranging many ceramic filter modules in parallel in a detachable manner in two stages in series to put the same in a cylindrical filter container. CONSTITUTION:Each of ceramic filter modules 20 consists of many tubular ceramic filters 22 inserted in each of many through holes provided to two end plates 21 and the packings sealing each of the through holes of the end plates 21 and the ceramic filters 22. A large number of the ceramic filter modules 20 are fitted in the regions corresponding to many raw solution passages of a lower connection plate 11 and the lower connection plate 11 is fixed to an upper connection plate 12 by clamping supports 15 by bolts to form a lower stage. An upper stage is placed on the lower stage to clamp both stages at central flange parts by bolts. By this constitution, ceramic filter module groups are vertically connected in two stages in series to be received in a filter container l.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a ceramic filter device.

[0002]

2. Description of the Related Art Ceramic filters are heat resistant, acid resistant,
It has excellent wear resistance. In particular, cross-flow filtration using a tubular ceramic filter can obtain high filtration efficiency, and thus is expected to be applied to many filtration devices. In such a filtration device, obtaining a larger amount of filtrate has become a problem. Regarding a single tubular ceramic filter, in order to increase the capacity and improve the filtration efficiency,
Improvements have been made by providing a plurality of stock solution flow holes to increase the filtration area. However, there is a limit to increasing the capacity of a single tubular ceramic filter, so modularization of ceramic filters is being promoted.

The ceramic filter is modularized by arranging a plurality of tubular ceramic filters in parallel and connecting them in series.

The present inventors already have two metal end plates having a plurality of through holes having a diameter larger than the outer diameter of the tubular ceramic filter, and a plurality of columns provided between the two end plates. , A ceramic comprising a plurality of tubular ceramic filters inserted into through holes provided in these two end plates, and respective constituent members of packing for sealing between the through holes of the end plates and the respective ceramic filters Disclosed is a ceramic filter device in which a filter module is manufactured and a plurality of ceramic filter modules are arranged in series in a cylindrical filter container having an inlet and an outlet for a raw liquid and an outlet for a filtrate (JP-A-63-21822).
No. 2).

In such a ceramic filter device,
For example, even if only one ceramic filter is repaired, it is easy to remove it from the end plate, replace it, and reassemble it, and it is excellent in workability.

[0006]

In order to process a larger amount of stock solution in the above-mentioned conventional ceramic filter device, it is necessary to construct a module using as many ceramic filters as possible. On the other hand, each ceramic filter needs to be attached to the end plate with an accuracy of ± 0.2 mm with respect to the specified dimension.

However, in order to satisfy these two conditions, a large number of through holes must be formed in the end plate with high accuracy, and a large number of ceramic filters must be attached to the end plate with high accuracy. .. For this reason, there is a problem that the processing cost of the end plate becomes high and it takes a long time to assemble and maintain the module.

It is an object of the present invention to provide a ceramic filter device which can reduce the manufacturing cost, the assembling time and the maintenance time and can obtain a large amount of filtrate.

[0009]

A ceramic filter device according to the present invention comprises two end plates each having a plurality of through holes each having a diameter larger than the outer diameter of a tubular ceramic filter, and a plurality of end plates each fixing the end plate. Column, a plurality of tubular ceramic filters that are inserted into through holes provided in the two end plates, and packing components that seal between the through holes of the end plate and the ceramic filters. A plurality of ceramic filter modules, an inlet and an outlet for the undiluted solution, and an outlet for the filtrate, and a cylindrical filter container capable of individually attaching and detaching the plurality of ceramic filter modules and accommodating them in parallel It is characterized by that.

In the present invention, the number of ceramic filters forming each module is set to be smaller than in the conventional case. In the present invention, a plurality of stages of a module group including a plurality of ceramic filter modules may be connected in series.

In the present invention, the end plate is preferably made of metal. The packing is made of a material such as fluororesin, silicone resin, butyl rubber, natural rubber, or Viton (registered trademark). Fluorine resin has excellent heat resistance and corrosion resistance.
Silicone resin has excellent heat resistance, chemical resistance, and abrasion resistance to some extent. Butyl rubber is particularly excellent in corrosion resistance against organic solvents and organic acids. Natural rubber has excellent sealing properties. Viton is particularly excellent in heat resistance.

[0012]

In the ceramic filter device of the present invention, the number of ceramic filters forming each module is smaller than in the conventional case. Therefore, the processing cost is low because only a small number of through holes need to be provided in the end plate with high accuracy. Also, since a small number of ceramic filters can be attached to the end plate,
Module assembly and maintenance is quick.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a partially cutaway front view of the ceramic filter device of this embodiment. However, only a part of the ceramic filter module is illustrated. FIG. 2 is a view of the cross section of the central portion of the ceramic filter device of the present embodiment seen from above, FIG. 3 is a view of the cross section of the center portion of the ceramic filter device of the present embodiment seen from below, FIG. ) Is an end view of the ceramic filter module that constitutes the ceramic filter device of the present embodiment, and FIG. 8B is a front view of the ceramic filter module.

The ceramic filter device of this embodiment has a structure as follows. That is, a ceramic filter module is formed by using seven hexagonal columnar alumina ceramic filters each having a length of 850 mm and having 19 stock solution circulation holes each having a diameter of 4 mm. Twenty-four ceramic filter modules are arranged in parallel, and two or more such ceramic filter module groups are vertically connected in series and housed in a stainless steel filter container.

First, the ceramic filter module 20
Will be described. As shown in FIGS. 4A and 4B, each of the two end plates 21 is provided with seven through holes each having a diameter larger than the outer diameter of the ceramic filter. Then, the seven ceramic filters 22 are respectively inserted into the through holes provided in these two end plates 21, and the end plates 2
The packing 23 seals between each through hole 1 and the end of each ceramic filter 22. Further, the two end plates 21 are fixed by bolting a plurality of columns (not shown). The ceramic filter module 20 is configured by these respective constituent members.

As shown in FIGS. 1 to 3, the ceramic filter device of this embodiment is assembled as follows. The connecting plate 11 is placed on the bottom 2 of the filter container 1 having the stock solution inlet 3. Twenty-four stock solution flow paths are formed in the connecting plate 11. A concave portion is formed in a portion of the connecting plate 11 corresponding to the stock solution flow channel so that the ceramic filter module 20 is fitted therein. Lower body part 4 of filter container having filtrate outlet 5 on the periphery of connecting plate 11.
Is placed. The bottom portion 2 of the filter container 1, the connecting plate 11, and the lower body portion 4 of the filter container 1 are bolted with a flange portion. 24 ceramic filter modules 2
One end of 0 is fitted into the concave portion of the connecting plate 11 via the O-ring 10 and arranged in parallel. On the lower body portion 4 of the filter container 1, a stock solution flow path and a recess are formed, and a connecting plate 12 paired with the connecting plate 11 is placed. At this time, 2
The other ends of the four ceramic filter modules 20 are
Similar to the above, it is fitted into the recess of the connecting plate 12 via the O-ring 10. Lower connecting plate 11 and upper connecting plate 1
2 is fixed by bolting the column 15. In this way, the lower stage of the ceramic filter device is constructed.

On the other hand, the filter container 1 having the stock solution outlet 9
Of the ceramic filter device by using the head 8, the connecting plate 14, the upper body portion 6 of the filter container 1 having the vent holes 7, the 24 ceramic filter modules 20, the connecting plate 13 and the like in exactly the same manner as described above. Make up the upper tier.

Further, the upper stage is placed on the lower stage and bolted at the central flange portion. As described above, the ceramic filter device of the present embodiment in which 24 ceramic filter modules 20 are arranged in parallel and two or more such ceramic filter module groups are vertically connected in series and housed in the filter container 1 are described. assemble.

In this ceramic filter device, the number of ceramic filters 22 forming each module is smaller than the conventional one (7). Therefore, the processing cost is low because only a small number of through holes need to be provided in the end plate 21 with high accuracy. In addition, a small number of ceramic filters 22 are attached to the end plate 21.
Assembling and maintenance of the module can be completed in a short time because it can be installed on the. Moreover, a total of 336 (7
Since a ceramic filter of × 24 × 2) is used, a large amount of filtrate can be obtained.

[0021]

As described above in detail, the ceramic filter device of the present invention can reduce the manufacturing cost, the assembling and maintenance time, and can obtain a large amount of filtrate.

[Brief description of drawings]

FIG. 1 is a front view showing a partially broken ceramic filter device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the ceramic filter device according to the present embodiment.

FIG. 3 is another cross-sectional view of the ceramic filter device according to the present embodiment.

FIG. 4A is an end view of a ceramic filter module constituting the ceramic filter device of the present embodiment,
(B) is a front view of a ceramic filter module.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Filter container, 2 ... Filter container bottom part, 3 ... Undiluted solution inlet port, 4 ... Filter container lower body part, 5 ... Filtrate extraction port, 6 ... Filter container upper body part, 7 ... Vent hole, 8 ... Filter Container head, 9 ... Undiluted solution outlet, 10 ... O-ring, 1
1, 12, 13, 14 ... Connection plate, 15 ... Struts, 20 ... Ceramic filter module, 21 ... End plate, 22 ... Ceramic filter, 23 ... Packing.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiro Minami 1st Nanto, Ogakie-cho, Kariya city, Aichi Toshiba Ceramics Co., Ltd. Kariya factory (72) Inventor Tadao Eguchi 1st, Nanto, Ogakie-cho, Kariya city, Aichi Kariya Factory Co., Ltd. (72) Inventor Yufumi Imaizumi 1st Nanto, Ogakie-cho, Kariya City, Aichi Toshiba Ceramics Company Kariya Factory

Claims (1)

[Claims] 1. Two end plates each having a plurality of through holes each having a diameter larger than the outer diameter of the tubular ceramic filter;
A plurality of columns for fixing one end plate, a plurality of tubular ceramic filters inserted into through holes provided in the two end plates, and a seal between each through hole of the end plate and each ceramic filter A cylinder having a plurality of ceramic filter modules composed of the respective constituent members of the packing, an inlet and an outlet of the undiluted solution, and an outlet of the filtrate, and the plurality of ceramic filter modules can be individually attached and detached and can be arranged and accommodated in parallel. And a ceramic filter container.